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" From the great difference of the causes that influence the productiveness of lands, it is obvious, that in the present state of science, no certain system can be devised for their improvement, independent of experiment ; but there are few cases in which... "
The domestic gardener's manual - Seite 5
von John Towers (C.M.H.S.) - 1839
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The Repertory of arts and manufactures [afterw.] arts, manufactures and ...

Repertory of arts, manufactures and agriculture - 1805 - 534 Seiten
...improvement, independent of experiment; but ' there are few cases in which the labour of analytical trials •will not be amply repaid by the certainty with which • they denote the best methods of amelioration ; and thii ' will particularly happen when the defect of composition is found in tlie...
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Repertory of Arts, Manufactures, and Agriculture: Consisting of Original ...

1805 - 534 Seiten
...independent of experiment; but there are few cases in which the labour of analytical trials will net be amply repaid by the certainty with which they denote the best methods of amelioration ; and this •wilj. particularly happen when the defect of composition is found in the...
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System of Theoretical and Practical Chemistry ...

Friedrich Christian Accum - 1808 - 492 Seiten
...improvement, independent of experiment ; but there are few cases in which the labour of analytical trials will not be amply repaid by the certainty with which they denote the best methods of amelioration ; and this will particularly happen when the defect of composition is found in the proportions...
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General View of the Agriculture of the Hebrides, Or Western Isles of ...

James MacDonald (A.M.), Board of Agriculture (Great Britain) - 1811 - 848 Seiten
...of experiment ; but there are few cases in which the labour of experiments, and even of analytical trials, will not be amply repaid by the certainty with which they denote B b 2 the the best methods of melioration ; and this will particularly happen when the defect of composition...
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System of Theoretical and Practical Chemistry ...

Friedrich Christian Accum - 1814 - 484 Seiten
...the certainty with which they denote the best methods of amelioration ; and this will par ticularly happen when the defect of composition is found in...proportions of the primitive earths. In supplying animal or vegetable manure, a temporary tood only is provided for plants, which is in all cases exhausted...
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CHEMICAL RE-AGENTS, OR TEST; AND THEIR APPLICATION IN ANALYZING WATERS ...

F. ACCUM - 1828 - 526 Seiten
...their improvement, independent of experiment; but there are few cases in which the labour of analytical trials will not be amply repaid by the certainty with which they denote the best methods of amelioration; and this will particularly happen when the defect of composition is found in the proportions...
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The Library of Agricultural and Horticultural Knowledge: With an Appendix on ...

Library, John Baxter - 1830 - 614 Seiten
...their improvement, independent of experiment, but there are few cases in which the labour of analytical trials will not be amply repaid, by the certainty...composition is found in the proportions of the primitive earth«. In supplying animal or vegetable manure, a temporary food only is provided for plants, which...
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The Library of Agricultural and Horticultural Knowledge: With an Appendix on ...

Library, John Baxter - 1830 - 594 Seiten
...there are few cases in which the labour of analytical trials will not beamply repaid, by the certainly with which they denote the best methods of melioration,...happen when the defect of composition is found in 'he proportions of the primitive earths. In supplying animal or vegetable manure, a temporary food...
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An Encyclopædia of Agriculture: Comprising the Theory and Practice of the ...

John Claudius Loudon - 1831 - 1330 Seiten
...case1! in which the labour of analytical trials will not be amply repaid by the certainty with wliich they denote the best methods of melioration ; and...organic matter, a temporary food only is provided for plant*, which is in all cases exhausted by means of a certain number of crops ; but when a soil is...
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The Engineer's and Mechanic's Encyclopædia: Comprehending Practical ..., Band 1

Luke Hebert - 1835 - 816 Seiten
...improvement, independent of experiment ; but there are few cases in which the labour of analytical trials will not be amply repaid by the certainty with...proportions of the primitive earths. In supplying animal or vegetable manure, a temporary food only is provided for plants, which is in all cases exhausted...
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